We came to know from the Rig vedas that "natural
causes" or "ecological changes" is not only the reason for the
fall of the civilization around 1700 B.C,even though.some say that the
Saraswati River was drying up due to the river capture and sandstorms or others
that the region suffered catastrophic floods.Eventually,this prosperity came to
an end.The integrated cultural network collapsed.Trade,writing,and seals all
but disappeared from the area.Many believe that the decline of the Harappan
civilization was a result of Three possible causes,and probably a combination
of all three:1.External human forces:Invading nomadic tribes of Aryan

warriors.Harrapans had very poor weapons--stone tipped arrows. Aryan war-god
Indra vs. Indus pacifists.2.Natural forces: floods,droughts,radical geologic
changes.Natural dams flooded the cities. Back up of salt water from the
ocean.3.Internal human forces:urban pollution and over population.Decline of
trade with Mesopotamia. Conservative culture that did not pick up new ideas.Didn’t
use their ingenuity to defend themselves.Also the identification of the Vedic
Sarasvati River with the Ghaggar-Hakra River was accepted by most of
scholars.such as:Friedrich Max Müller,Michael Danino and S.R.N. Murthy.Hence
the abandoning of Harrapa and Mohenjodaro was probably due to several factors
such as Invading hordes of Aryans / Indo-Europeans, progressive desiccation of
the Indus Valley,Seasonal flooding of Mohenjo Daro and other sites[dangers of
floods],due to shifts in the river course and the sharp decrease in trade with
Mesopotamia

It is very easy to find out whether this Indus valley
civilization is belongs to dravidians or aryans.For example:1]:There were no
temples or places of worship as well as no evidences of any form of "fire
culture" existed there.We find from the archaeological excavation that
there were no evidence of fire altars in Harappa or Mohenjodaro.and
consequently one can reasonably conjecture that the various rituals around the
fire which are so critical in Hinduism were introduced later by the Aryans.2]:We
find Brahui,a Dravidian language still spoken by about 2.2 million people
mainly in the Balochistan region of Pakistan and also in Afghanistan as well as
Indus valley script is a agglutinative as Dravidian language.

3]:There were no
evidences found in Indus valley to support any caste system,the so called
"varna system" existed among indus valley people.But we find that
3500 years old Rig Veda proposed a caste system in four steps such as:Brahmins
[priest ],Kshatriyas (the warriors),Vaishyas (merchants) and Shudras
(workers).According to traditional theories, the Indian caste system has its
origins in the advent of the Aryans in the Indus Valley.Thus,this social
stratification system was the product of the Aryan people’s will to separate
themselves from, and subjugate,the local populations,dark-skinned
inhabitants,the

Dasyus.Here,the Caste was assigned by birth;children inherited
the caste and functions of their parents.There was very little mobility across
castes and the fair skinned Aryans conveniently placed themselves at the top of
the Social hierarchy.and placed native Indian/Indus valley people such as
domestic workers & cleaners, artisans, traders and farmers.in the fourth
Varna,at the bottom of the Social hierarchy,by which the Aryans who came in as
a conquering people,now became the ruling class.

4]:The Indus Valley people do
not appear to have been in possession of the horse: there is no osteological
evidence of horse remains in the Indian sub-continent before 2,000 BC, when the
Aryans first came to India, and on Harappan seals and terracotta figures,
horses do not appear.However, Bulls and elephants do appear on these seals,That
is,We find that, though the Aryans had a horse culture,which is very evident
from rig veda,there were no evidence exists of horses among the many
representations of animals of the lost Harappan civilization.

5]:The spiritual
approach of the non-Aryans[Indus valley people] was Tantra and it differed from

the Vedic practices of the Aryans because it was fundamentally an introversive
process rather than an external ritual.The various artifacts found in the Indus
valley ruins are yogic or Tantric in nature.These include proto-Tantric
fertility symbols such a lingams and yonis & Mother Goddess figurines Also
we find a Shiva seal which depicts a buffalo-horned masked male figure seated
on a throne in a version of the cross-legged "lotus" posture of Yoga
and his private parts prominently visible,Another wood-sculpture of a squatting
female statue also found.Here this female squats in birthing position lifting
her dress to reveal her private parts,stained from offerings.Women, according
to many Vedic injunctions were considered too low to study and teach the
scriptures.On the other hand,Tantric teachings,have generally held women in
high regard.

6]:The lack of references to agriculture in the Rig-Veda indicate
that the early Aryans were pastoralists.In contrast, the Tantric Dravidians
were wheat /rice-growing farmers.

1 comments:

If Tamil Origin Theory is valid, then where are ancient sites in Tamil Nadu comparable to Indus Valley cities? Anthropology of ancient skeletons dug-up in Indus valley revealed close match with present population of Punjab & Sind.

Even today there is no general agreement on Indus-Valley language & culture. However, most scholars accept that there is no evidence of Aryan Invasion. There is simply no evidence of destruction of cities or abrupt religious, cultural transformation by invading armies. Some have suggested a gradual migration of small groups of Aryans who gradually climbed up social hierarchy and influenced the culture & religion of masses. Again there is no general agreement. Meanwhile the issue got thoroughly politicised by warring groups of cultural & linguistic fanatics.